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Materials 2011, 4(12), 2171-2182;

Electrochromic Type E-Paper Using Poly(1H-Thieno[3,4-d]Imidazol-2(3H)-One) Derivatives by a Novel Printing Fabrication Process

Kuraray America, Inc., 11500 Bay Area Boulevard, Pasadena, TX 77507, USA
Tsukuba Research Center, Kuraray Co. Ltd., 41 Miyukigaoka, Tsukuba, Ibaraki 305-0841, Japan
Author to whom correspondence should be addressed.
Received: 8 October 2011 / Revised: 8 December 2011 / Accepted: 9 December 2011 / Published: 14 December 2011
(This article belongs to the Special Issue Electrochromic Materials and Devices)
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In this study, we report poly(1H-thieno[3,4-d]imidazol-2(3H)-one) (pTIO) derivatives for an electrochromic (EC) type e-paper and its novel printing fabrication process. pTIO is a kind of conductive polymer (CP) s which are known as one of the EC materials. The electrochromism of pTIO is unique, because its color in doped state is almost transparent (pale gray). A transparent state is required to show a white color in a see-through view of an EC type e-paper. An electrochromism of CP has a good memory effect which is applicable for e-paper. The corresponding monomers of CP are able to be polymerized with an electrochemical method, which be made good use of for the fabrication process of e-paper. pTIO derivatives are copolymerized with other pi-conjugated X unit, which adjusts the color of electrochromism. Finally, we fabricated a segment matrix EC display using pTIO derivatives by ink-jet printing. View Full-Text
Keywords: electronic papers; conductive polymers; printable electronics electronic papers; conductive polymers; printable electronics

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Kondo, Y.; Tanabe, H.; Kudo, H.; Nakano, K.; Otake, T. Electrochromic Type E-Paper Using Poly(1H-Thieno[3,4-d]Imidazol-2(3H)-One) Derivatives by a Novel Printing Fabrication Process. Materials 2011, 4, 2171-2182.

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